(19)
(11) EP 1 610 558 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.02.2006 Bulletin 2006/06

(43) Date of publication A2:
28.12.2005 Bulletin 2005/52

(21) Application number: 05013473.3

(22) Date of filing: 22.06.2005
(51) International Patent Classification (IPC): 
H04N 7/24(2006.01)
 H04L 29/06(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 22.06.2004 KR 2004046697

(71) Applicant: LG ELECTRONICS INC.
Seoul (KR)

(72) Inventors:
  • Kwang-Deok, Seo
    Gunpo Gyeonggi-Do (KR)
  • Chan-Woo, Kim
    Ilsan-Gu Goyang Gyeonggi-Do (KR)

(74) Representative: von Hellfeld, Axel 
Wuesthoff & Wuesthoff Patent- und Rechtsanwälte Schweigerstrasse 2
81541 München
81541 München (DE)

   


(54) Synchronizing video/audio of mobile communication terminal


(57) The present invention relates to a method for shortening the time to synchronize video/audio data in a mobile communication terminal. The method comprises receiving video/audio data in the mobile communication terminal through a set session, determining whether a current sampling rate of the received video/audio data is consistent with a previous sampling rate of the received video/audio data, calculating a standard time according to the determination, and synchronizing the video/audio data based on the calculated standard time. The standard time is calculated using a preset ratio if the current sampling rate is consistent with the previous sampling rate. However, the standard time is calculated using a variation value of a real time protocol (RTP) time stamp and a variation value of a network time protocol (NTP) time stamp if the current sampling rate is not consistent with the previous sampling rate.







Search report